package thread;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

//实现一个固定线程个数的线程池
class MyThreadPool{
    private BlockingQueue<Runnable> queue = null;

    public MyThreadPool(int n){
        //初始化线程池，创建固定个数的线程池
        //这里使用ArrayBlockingQueuArrayBlockingArrayBlockingQueue作为任务队列，容量为1000
        queue = new ArrayBlockingQueue<Runnable>(1000);
        //
         //创建N个线程
        for (int i = 0; i < n; i++) {
            Thread t= new Thread(()->{
                try{
                    while(true){
                        Runnable task  =queue.take();
                        task.run();
                    }
                }catch (InterruptedException e){
                    e.printStackTrace();
                }
            });
            //t.setDaemon(true);
            t.start();
        }
    }

    public  void submit(Runnable task) throws InterruptedException {
        //将任务放入队列中
        queue.put(task);
    }
}


public class Demo36 {
    public static void main(String[] args) throws InterruptedException {
        MyThreadPool myThreadPool = new MyThreadPool(10);

        for (int i = 0; i < 100; i++) {
            int id = i;
            myThreadPool.submit(()->{
                System.out.println(Thread.currentThread().getName() + " id="+id);
            });
        }
    }
}
